Greg Heffley, main character in the Diary of a Wimpy Kid series
Greg Kleinschmidt, character in movie "The Invention of Lying"
DI Greg Lestrade, character on TV's "Sherlock"
Good GuyGreg, Internet meme
GregCarlyle, character on TV's "The Client List"
Greg Serrano, character on CW's "Crazy Ex-Girlfriend," played by Santino Fontana